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Desa VML27NR Operation And Installation Manual

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unVEntEd (VEnt-FREE) gAS Log HEAtER
oWnER'S oPERAtion And inStALLAtion MAnuAL
Also Design-Certified As A Vented Decorative Appliance
Patent Pending
FLAME-MAX
WARNING: If the information in this manual is not fol-
lowed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
MuLti-SidEd Log dESign
®
VML27nR And VML27PR
REMotE ContRoL REAdy ModEL
For more information, visit www.desatech.com

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Summary of Contents for Desa VML27NR

  • Page 1 Patent Pending FLAME-MAX MuLti-SidEd Log dESign ® VML27nR And VML27PR REMotE ContRoL REAdy ModEL WARNING: If the information in this manual is not fol- lowed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

  • Page 2: Table Of Contents

    tABLE oF ContEntS Safety Information .......... Cleaning and Maintenance ........ 3 Product Identification ........... 5 Wiring Diagram ..........4 Local Codes............5 Specifications ............ 4 Unpacking............5 Replacement Parts ..........4 Product Features ..........5 Service Hints ............. 4 Remote Control Accessories .......

  • Page 3: Safety Information

    SAFEty inFoRMAtion WARNING: Do not allow fans Continued to blow directly into the heater. WARNING: This product con- Avoid any drafts that alter burner tains and/or generates chemicals flame patterns. Ceiling fans can known to the State of California create drafts that alter burner to cause cancer or birth defects flame patterns.
  • Page 4 11. This heater needs fresh, outside air ventilation to SAFEty inFoRMAtion run properly. This heater has an oxygen depletion Continued sensing (ODS) pilot light safety system. The 1. This appliance is only for use with the type of ODS shuts down the heater if not enough fresh gas indicated on the rating plate.

  • Page 5: Product Identification

    PRoduCt PRoduCt FEAtuRES idEntiFiCAtion OpERATION This heater is clean burning. It requires no outside Base Log Set venting. There is no heat loss out a vent or up a Assembly chimney. Heat is generated by realistic, dancing yellow flames. This heater is designed for vent-free operation with flue damper closed.

  • Page 6: Air For Combustion And Ventilation

    AiR FoR CoMBuStion Unusually tight construction is defined as construction where: And VEntiLAtion a. walls and ceilings exposed to the out- side atmosphere have a continuous WARNING: This heater shall water vapor retarder with a rating of not be installed in a confined one perm (6 x 10 kg per pa-sec-m ) or...
  • Page 7 If the actual Btu/Hr used is less than the maximum AiR FoR CoMBuStion Btu/Hr the space can support, the space is an uncon- And VEntiLAtion fined space. You will need no additional fresh air ventilation. Continued Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft.

  • Page 8: Installation

    AiR FoR CoMBuStion NOTICE: State or local codes may And VEntiLAtion only allow operation of this appli- Continued ance in a vented configuration. Check your state or local codes. Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts.
  • Page 9 Carefully follow the instructions below. This will inStALLAtion ensure safe installation into a masonry, UL127- Continued listed manufactured fireplace or listed vent-free firebox. CAUTION: This heater cre- Minimum Clearances For Side ates warm air currents. These Combustible Material, Side Wall and currents move heat to wall sur- Ceiling faces next to heater.
  • Page 10 inStALLAtion Noncombustible Continued Material Requirements for Distance (A) Safe Installation Minimum Noncombustible Material 1" or more Noncombustible Clearances material OK. If Not Using Mantel Note: If using a mantel, proceed to If Using Between 8" Install fireplace hood Mantel. If not using a mantel, follow the informa- and 1"...
  • Page 11 inStALLAtion Continued NOTICE: Surface temperatures NOTICE: If your installation does of adjacent walls and mantels be- not meet the minimum clear- come hot during operation. Walls ances shown, you must do one and mantels above the firebox of the following: may become hot to the touch.
  • Page 12 1. The fireplace does not meet the clearance inStALLAtion to combustibles requirements for vent-free Continued operation FLOOR CLEARANCES 2. State or local codes do not permit vent-free A. If installing appliance on the floor level, you operation must maintain the minimum distance of 14" 3.
  • Page 13 1. Apply pipe joint sealant lightly to male inStALLAtion threads of the fitting to be threaded into gas Continued control. Connect approved flexible gas hose to gas control fitting in heater (see Figure 11). INSTALLING HEATER BASE IMPORTANT: Hold gas fitting with wrench ASSEMBLY when connecting flexible gas hose.
  • Page 14 inStALLAtion Installing Batteries for Remote Receiver and Hand-Held Remote Control Continued Two 9-volt alkaline batteries (not included) are required to operate this heater with the wireless INSTALLING OpTIONAL REMOTE hand-held remote control set. One battery must CONTROL ACCESSORIES be installed in the receiver and one in the hand- Installing Remote Receiver held remote control unit.
  • Page 15 For propane/LP units, the installer must supply inStALLAtion an external regulator. The external regulator will Continued reduce incoming gas pressure. You must reduce incoming gas pressure to between 11" and 14" of CONNECTING TO GAS SUppLY water. If you do not reduce incoming gas pres- sure, heater regulator damage could occur.
  • Page 16 inStALLAtion CHECKING GAS CONNECTIONS Continued WARNING: Test all gas piping and connections, internal and WARNING: Use pipe joint external to unit, for leaks after sealant that is resistant to liquid installing or servicing. Correct petroleum (LP) gas. all leaks at once. We recommend that you install a sediment trap in supply line as shown in Figure 18.
  • Page 17 inStALLAtion pRESSURE TESTING HEATER GAS CONNECTIONS Continued 1. Open equipment shutoff valve (see Figure 19). Test Pressures Equal To or Less Than 2. Open main gas valve located on or near gas 1/2 PSIG (3.5 kPa) meter for natural gas or open propane/LP 1.
  • Page 18 inStALLAtion Left Front Log (#) Continued 2. Position left front log (#2) onto two pins on left front and middle of base log (see Figure 24). 3. Place right rear log (#3) onto two pins on right rear of base log (see Figure 25). 4.

  • Page 19: Operating Heater

    oPERAting HEAtER LIGHTING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: • If fireplace has glass doors, WARNING: If you do not fol- never operate this heater with low these instructions exactly, glass doors closed. If you op- a fire or explosion may result erate heater with doors closed, causing property damage, per- heat buildup inside fireplace...
  • Page 20 oPERAting HEAtER Control Cover Log Continued 3. Remove control cover log (see Figure 27). 4. Press in and turn control knob clockwise to the OFF position. 5. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B”...
  • Page 21 IMPORTANT: Do not leave the selector switch oPERAting HEAtER in the REMOTE or ON position when the pilot Continued is not lit. This will drain the battery. Shutting Off Burner Only (pilot stays lit) You may shut off the burner and keep the pilot Flame Adjustment Piezo Ignitor Knob...

  • Page 22: Inspecting Burners

    oPERAting HEAtER Safety Features When away from home for an extended period Continued of time or as a child safety feature to prevent accidental ignition of the fireplace, the receiver THERMOSTAT SERIES (MODEL ON/OFF/REMOTE switch should be in the HRC200) OFF position.

  • Page 23: Cleaning And Maintenance

    inSPECting BuRnERS WARNING: Failure to keep Continued the primary air opening(s) of Pilot Burner the burner(s) clean may result in sooting and property damage. Thermocouple BURNER INjECTOR HOLDER AND pILOT AIR INLET HOLE The primary air inlet holes allow the proper amount of air to mix with the gas.

  • Page 24: Wiring Diagram

    Btu (Variable) 26,000/39,000 26,000/39,000 model and serial numbers of your heater ready. Type Gas Natural Gas Propane/LP You can also visit DESA Heating Products’ techni- Ignition Piezo Piezo cal services web site at www.desatech.com. Pressure Manifold 3.5" W.C. 8.0" W.C.

  • Page 25: Troubleshooting

    tRouBLESHooting WARNING: Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY...
  • Page 26 tRouBLESHooting Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame 1. Control knob not fully pressed in 1. Press in control knob fully goes out when control knob is 2. Control knob not pressed in 2. After ODS/pilot lights, keep con- released long enough trol knob pressed in 30 seconds...
  • Page 27 tRouBLESHooting Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Slight smoke or odor during initial 1. Not enough air 1. Check burner for dirt and operation debris. If found, clean burner (see Cleaning and Mainte- nance, page 23) 2. Gas regulator defective 2.
  • Page 28 tRouBLESHooting Continued WARNING: If you smell gas • Shut off gas supply. • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Fol- low the gas supplier’s instructions.

  • Page 29: Accessories

    ACCESSoRiES Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual.
  • Page 30 PARtS BREAkdoWn MODELS VML27PR AND VML27NR 27-5 27-3 27-4 27-1 27-2 (NG Only) (NG Only) www.desatech.com 111115-01F...
  • Page 31 PARtS LiSt This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 24 of this manual. NO. PART NO. DESCRIpTION QTY. Painted Base Assembly • • 104591-01 Burner Tube •...

  • Page 32: Warranty Information

    This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater to proper operating condition and an allowance for labor when provided by a DESA Heating Products Authorized Service Center. Warranty part(s) MUST be obtained through authorized dealers of this product and/or DESA Heating Products who will provide original factory replacement parts.

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Vml27pr

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